Citation:

PANGAEA.947018

Name: Geochemical results for <5 µm size fraction sediments of core PS75/056-1
Published: 2022-08-11
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Dust provenance; Iron fluxes; Radiogenic isotopes; Rare earth elemets; Southern Hemisphere Westerly Winds; Southern Ocean

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Published: 2022-08-11 • DOI registered: 2022-11-22

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Abstract:

This dataset contains the geochemical results for the dust fraction (<5 µm size fraction) of sediment core PS75/056-1 from the South Pacific Subantarctic Zone (55.16°S, 114.78°W; 3581 m water depth) collected during R/V Polarstern expedition ANT-XXVI/2 (PS75 BIPOMAC) in 11/2009-01/2010 (Gersonde, 2011, doi:10.2312/BzPM_0632_2011). The original lithogenic dust provenance signal was extracted from a total of 108 samples (incl. 13 full replicates) between 0.03 and 9.93 m core depth covering the period from ~8,000 to ~260,000 years before present. The age model is from van der Does et al. (2021, doi:10.1016/j.quascirev.2021.106978). All samples were analyzed for their trace element content using a ThermoFinnigan Element II ICP-MS and their radiogenic isotope composition (Nd, Pb, Sr) was analyzed with a ThermoScientific Neptune Plus MC-ICP-MS at the ICBM in Oldenburg, Germany

Keyword(s):

Dust provenance; Iron fluxes; Radiogenic isotopes; Rare earth elemets; Southern Hemisphere Westerly Winds; Southern Ocean

Supplement to:

Struve, Torben; Longman, Jack; Zander, Martin; Lamy, Frank; Winckler, Gisela; Pahnke, Katharina (2022): Systematic changes in circumpolar dust transport to the Subantarctic Pacific Ocean over the last two glacial cycles. Proceedings of the National Academy of Sciences, 119(47), e2206085119, https://doi.org/10.1073/pnas.2206085119

Funding:

German Research Foundation (DFG), grant/award no. 412785502 : Glacial - Interglacial Changes in Dust Supply to the Pacific Southern Ocean

Coverage:

Latitude: -55.162330 * Longitude: -114.788500

Date/Time Start: 2009-12-15T03:15:00 * Date/Time End: 2009-12-15T03:15:00

Minimum DEPTH, sediment/rock: 0.030 m * Maximum DEPTH, sediment/rock: 9.925 m

Event(s):

PS75/056-1 * Latitude: -55.162330 * Longitude: -114.788500 * Date/Time: 2009-12-15T03:15:00 * Elevation: -3581.0 m * Recovery: 10.21 m * Location: South Pacific Ocean * Campaign: (PS75 BIPOMAC) * Basis: * Method/Device: Gravity corer (Kiel type) (SL)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Laboratory code/label	Lab label		Struve, Torben
2	Sample comment	Sample comment		Struve, Torben		Internal error (2σ SE) and the external error (2σ SD) for blank-corrected Pb isotope ratios adopted from uncorrected Pb isotope results for samples M12, M13 and M14, respectively.
3	Depth, top/min	Depth top	m	Struve, Torben
4	Depth, bottom/max	Depth bot	m	Struve, Torben
5	DEPTH, sediment/rock	Depth sed	m	Struve, Torben		Geocode
6	AGE	Age	ka BP	Struve, Torben	Adopted from van der Does et al. (2021)	Geocode
7	Neodymium-143/Neodymium-144 ratio	143Nd/144Nd		Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Normalized radiogenic isotope ratios, corrected for isobaric interferences, mass bias and machine offset (see methods section of the main text of this publication).
8	Neodymium-143/Neodymium-144 ratio, standard error	143Nd/144Nd std e	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Internal error (2σ SE) is the analytical 2σ standard error.
9	ε-Neodymium	ε-Nd		Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	143Nd/144Ndnorm. expressed as εNd = ((143Nd/144Ndsample)/(143Nd/144NdCHUR) – 1) × 10,000
10	ε-Neodymium, standard error	ε-Nd std e	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Internal error (2σ SE)
11	ε-Neodymium, standard deviation	ε-Nd std dev	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	External error (2σ SD) is the long term external reproducibility calculated as 2 sigma standard deviation of repeat analyses of secondary rock reference materials. See methods section of the main text for more details.
12	Strontium-87/Strontium-86 ratio	87Sr/86Sr		Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Normalized radiogenic isotope ratios, corrected for isobaric interferences, mass bias and machine offset (see methods section of the main text of this publication).
13	Strontium-87/Strontium-86 ratio, standard error	87Sr/86Sr std e	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Internal error (2σ SE)
14	Strontium-87/Strontium-86 ratio, standard deviation	87Sr/86Sr std dev	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	External error (2σ SD)
15	Lead-207/Lead-204 ratio	207Pb/204Pb		Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Normalized radiogenic isotope ratios, corrected for isobaric interferences, mass bias and machine offset (see methods section of the main text of this publication).
16	Lead-207/Lead-204 ratio, standard error	207Pb/204Pb std e	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Internal error (2σ SE)
17	Lead-207/Lead-204 ratio, standard deviation	207Pb/204Pb std dev	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	External error (2σ SD)
18	Lead-206/Lead-204 ratio	206Pb/204Pb		Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Normalized radiogenic isotope ratios, corrected for isobaric interferences, mass bias and machine offset (see methods section of the main text of this publication).
19	Lead-206/Lead-204 ratio, standard error	206Pb/204Pb std e	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Internal error (2σ SE)
20	Lead-206/Lead-204 ratio, standard deviation	206Pb/204Pb std dev	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	External error (2σ SD)
21	Lead-208/Lead-204 ratio	208Pb/204Pb		Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Normalized radiogenic isotope ratios, corrected for isobaric interferences, mass bias and machine offset (see methods section of the main text of this publication).
22	Lead-208/Lead-204 ratio, standard error	208Pb/204Pb std e	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Internal error (2σ SE)
23	Lead-208/Lead-204 ratio, standard deviation	208Pb/204Pb std dev	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	External error (2σ SD)
24	Lead-208/Lead-206 ratio	208Pb/206Pb		Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Normalized radiogenic isotope ratios, corrected for isobaric interferences, mass bias and machine offset (see methods section of the main text of this publication).
25	Lead-208/Lead-206 ratio, standard error	208Pb/206Pb std e	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Internal error (2σ SE)
26	Lead-208/Lead-206 ratio, standard deviation	208Pb/206Pb std dev	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	External error (2σ SD)
27	Lead-207/Lead-206 ratio	207Pb/206Pb		Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Normalized radiogenic isotope ratios, corrected for isobaric interferences, mass bias and machine offset (see methods section of the main text of this publication).
28	Lead-207/Lead-206 ratio, standard error	207Pb/206Pb std e	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	Internal error (2σ SE)
29	Lead-207/Lead-206 ratio, standard deviation	207Pb/206Pb std dev	±	Struve, Torben	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	External error (2σ SD)
30	Strontium	Sr	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
31	Zirconium	Zr	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
32	Barium	Ba	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
33	Lanthanum	La	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
34	Cerium	Ce	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
35	Praseodymium	Pr	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
36	Neodymium	Nd	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
37	Samarium	Sm	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
38	Europium	Eu	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
39	Gadolinium	Gd	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
40	Terbium	Tb	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
41	Dysprosium	Dy	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
42	Holmium	Ho	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
43	Erbium	Er	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
44	Thulium	Tm	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
45	Ytterbium	Yb	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
46	Lutetium	Lu	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
47	Lead	Pb	mg/kg	Struve, Torben	ICP-MS, Thermo Finnigan, Element 2
48	Europium anomaly	Eu/Eu*		Struve, Torben	Calculated, PAAS-normalized (Taylor and McLennan, 1985)	See SI Appendix for more details.
49	Lanthanum/Ytterbium ratio	La/Yb		Struve, Torben	Calculated, PAAS-normalized (Taylor and McLennan, 1985)	See SI Appendix for more details.

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

5019 data points

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